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/********************************************************
Function :fftshift
Syntax :B=fftshift(A)
Author : Tess Zacharias
********************************************************/
#include <numeric>
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/opencv.hpp"
#include <iostream>
#include "string.h"
using namespace cv;
using namespace std;
extern "C"
{
#include "api_scilab.h"
#include "Scierror.h"
#include "BOOL.h"
#include <localization.h>
#include "sciprint.h"
#include "../common.h"
int opencv_fftshift(char *fname, unsigned long fname_len)
{
SciErr sciErr;
Mat image;
CheckInputArgument(pvApiCtx, 1, 1);
CheckOutputArgument(pvApiCtx, 1, 1) ;
retrieveImage(image,1);
int cx = floor(image.cols/2);
int cy = floor(image.rows/2);
Mat q0(image, Rect(0, 0, cx, cy)); // Top-Left - Create a ROI per quadrant
Mat q1(image, Rect(cx, 0, cx, cy)); // Top-Right
Mat q2(image, Rect(0, cy, cx, cy)); // Bottom-Left
Mat q3(image, Rect(cx, cy, cx, cy)); // Bottom-Right
Mat tmp; // swap quadrants (Top-Left with Bottom-Right)
q0.copyTo(tmp);
q3.copyTo(q0);
tmp.copyTo(q3);
q1.copyTo(tmp); // swap quadrant (Top-Right with Bottom-Left)
q2.copyTo(q1);
tmp.copyTo(q2);
int temp = nbInputArgument(pvApiCtx) + 1;
string tempstring = type2str(image.type());
char *checker;
checker = (char *)malloc(tempstring.size() + 1);
memcpy(checker, tempstring.c_str(), tempstring.size() + 1);
returnImage(checker,image,1);
free(checker);
AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1;
ReturnArguments(pvApiCtx);
return 0;
}
}
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